Stadium: Court 3 Round: 26 Ground: Clay
| ITF Argentina F1 | 2018/05/14 12:00 | Boruch Skierkier v Ignacio Cuzzani | 3-6,4-6 |
| ITF Argentina F1 | 2018/05/12 17:30 | Emilio Juan Benitez v Boruch Skierkier | 5-7,4-6 |
| Challenger Braunschweig Qual | 2018/07/08 10:55 | Marvin Netuschil v Mariano Kestelboim | 6-3,6-1 |
| Challenger Braunschweig Qual | 2018/07/07 12:30 | George Von Massow v Mariano Kestelboim | 4-6,6-2,3-6 |
| ITF Czech Republic F4 | 2018/06/26 10:20 | Mariano Kestelboim v Tadeas Paroulek | 5-7,3-6 |
| ITF Hungary F4 | 2018/06/12 10:20 | Tim Van Rijthoven v Mariano Kestelboim | 6-3,6-4 |
| ITF Italy F6 | 2018/04/03 13:55 | Mariano Kestelboim v Billy Harris | 4-6,1-6 |
| ITF Tunisia F12 | 2018/03/31 09:00 | Hernan Casanova v Mariano Kestelboim | 6-1,6-3 |
| ITF Tunisia F12 | 2018/03/30 08:30 | Mariano Kestelboim v Clement Geens | 6-1,6-3 |
| ITF Tunisia F12 | 2018/03/29 08:30 | Mariano Kestelboim v Tomislav Jotovski | 6-2,6-1 |